Boiler-compound feeder.



, PATENTBDv APR. 1.1, 1905.

LLIMOCANM a BOILER ooMPoUND FEEDER.

APPLIGATIQN FILED lULYl, 1904.l

UNITED STATES Patented April-11, 1905.

PATENT OFFICE.

JOHN F. MCCANNA, OF CHICAGO, ILLINOIS, ASSIGNOR TO JOHN F. MCCANNACOMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

BOILER-COMPOUND FEEDER.

SPECIFICATION forming part of Letters Patent N0. 786,914, dated April11, 1905.

Application filed July 25, 1904. Serial 110.217,945.

To all whom t may concern:

Be it known that I, JOHN F. MCCANNA, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois` have.invented certain new and useful Improvements in Boiler-Compound Feeders,of which the following is aspecification.

My invention is concerned ywith certain new and useful improvements inboiler-compound feeders; and it consists in certain arrangements andorganizations of parts whereby I operate through the pump which supplieswater to the boiler an auxiliary pump connected with a reservoircontaining a boiler-cleaning compound, so that as the water-pump isoperated a quantity of boiler-cleaning compound is forced with the waterdelivered by said pump tothe boiler; and it further consistsinassociated means whereby the boiler-cleaning compound is delivered inuniform quantity, which may, however, be adjusted and controlled asoccasion may require.

To illustrate my invention, I annex hereto a sheet of drawings, in whichthe same reference characters are used to designate identical parts inboth the igures, of whichv Figure 1 is a side elevation showing myapparatus in position, and Fig. 2 is a sectional View through athree-way cock and its gageglass employed in connection with thereservoir for theV boiler-cleaning compound.

In the drawings the reference-letter a denotes a pump-cylinder, and I) asteam-cylinder for operating the same for forcing a supplyof water to aboiler (not shown) through the discharge-pipe c from the pump-cylinder.A reservoir d is mounted at a suitable place, as on top of thepump-cylinder, for the boilercleaning compound. This reservoir ispreferably provided with agage-glass @,leading from the top of saidreservoir and connected thereto atits lower end by athree-way cockf.(Shown in detail in Fig. 2.) A supply-pipe g leads from the valve to anauxiliary pump L, and a discharge-pipe j' leads from said pump to thewater-discharge pipe c, so that the boiler-- cleaning compound isdischarged into the water at each stroke of the auxiliary pump. Ioperate the auxiliary pump from the water-sup-l ply pump, and for thispurpose I provide a suitable connection, such as by providing the `witha collar or recess p, through which the rod /r passes. As the arm oreciprocates it cooperates with the tappets of the stem 7c to move thepiston of the auxiliary pump back and forth in its associated cylinderto force the compound through the pipe j to the boiler. By adjustingtheV position of either or both of the tappets Z and m I vary the lengthof the stroke of the associated piston, and thus regulate'and adjusttheamount of the discharge, which can be readily ascertained by turningthe threeway cock f to a' position one hundred and `eighty degrees fromthat shown in Fig. 2, where it will he seen that the 'boiler-cleaningcompoundwill be drawn slowly through the gage-glass, the` small diameterof .which permits the ready'ascertaining of the amount of the feed bymerely watching it.

While I have'V shown my invention as embodied in the form which I- atpresent consider best adapted to carry out its lpurposes, it will beunderstood that it is capable of 'modilications.` 'Y i y What I claim asnew, and desire to secure by Letters Patient of the' United States, isl.In a boiler-feeding apparatus, 'the combination with a water-supplypump,ofa reservoir for the boiler-cleaning compound, an auxlliary pumptherefor, a gage-glass connected with sald reservoir, a piston for the`water-pum p having a projection thereon, a piston for the auxiliarypump parallel to said first piston, tappets thereon with which theprojection cooperates, a discharge-pipe connecting the water-supply pumpand the boiler, a pipe connecting the reservoir and auxiliary pump, apipe connecting the auxiliary pump with the discharge-pipe, and athree-way valve in the pipe connecting the auxiliary pump and thereservoir whereby the compound may be drawn either from the reservoir orthe gageglass.

and water-supply pipe, and Valve connections between the pipe connectingthe auxiliary pump and boiler-cleaning-compound reservoir whereby thecontents of said reservoir may be drawn' from the reservoir through thegage-glass, substantially as and for the purpose described.

In testimony whereof 1 aix my Signature in presence of two witnesses.

JOHN F. MCCANNA.

Witnesses:

ARTHUR B. Surnom), ELIZABETH MoLI'roR.

